baber/WOPTO huggingface dataset:
Patent KR-20020045079-A (KR)
Title: A method and an apparatus for receiving packet data using re-encoding on physical layer to support combine in W-CDMA system
Inventor: LEE IN HONG
IPC: H04L1/18
Filed: 2000-12-07
Abstract: PURPOSE: A method and an apparatus for applying soft combine by using physical layer recoding in an asynchronous mobile communication system are provided to prevent a coding offset error by improving a soft combine performance. CONSTITUTION: A demultiplexing portion(210) is used for demultiplexing a received data symbol block. A rate matching portion(220) is used for matching a transmission rate for the demultiplexed data symbol block. A channel decoding portion(230) is used for performing a channel decoding operation for the data symbol block. A desegmentation/concatenation portion(240) is used for recovering the decoded data of the channel decoding portion(230) to a transmission block. A CRC check portion(250) is used for performing a CRC check for transmission block. A reverse concatenation/segmentation portion(260) is used for performing a reverse concatenation/segmentation process for an error transmission block and a retransmitting block. A channel encoding portion(270) is used for performing a channel encoding operation for the transmission block. A buffer(280) is used for storing the encoded transmission block of the channel encoding portion(270). A soft combine portion(290) is used for performing a soft combine process for the stored transmission block of the buffer(280) and the retransmitting block.
Patent KR-20020047459-A (KR)
Title: Image codec system based on multi-resolution image
Inventor: CHO HYEON DEOK
IPC: H04N19/89
Filed: 2000-12-13
Abstract: PURPOSE: A method and a system for encoding and decoding a video signal based on multi-resolution are provided to encode and decode digital information using error detection and error concealment. CONSTITUTION: A video signal is converted into multiple video signals having different resolutions and to be encoded into multi-resolution video signals. On bit stream is constructed of the encoded video signals and transmitted. The multi-resolution video signals are received and divided into video signals having different resolutions to be decoded. The decoded video signals are compared to detect an error. A video signal having the error is replaced by another video signal having no error. A video signal having relatively low resolution is generated using a video signal obtained by restoring a video signal having relatively high resolution.
Patent KR-20020047567-A (KR)
Title: Method for removing sludge from the absorbent oil
Inventor: KIM SEONG HYEON
IPC: C10B43/02
Filed: 2000-12-13
Abstract: PURPOSE: A method is provided to remove deteriorated sludge which is produced when absorbing and recycling crude light oil(BTX) in coke oven gas in the chemical conversion process in an iron mill using an absorbent oil generated during the coal carbonization. CONSTITUTION: In a method for removing deteriorated sludge in an absorbent oil which is circulated to absorb crude light oil distillate in a light oil recovery equipment(1), the method for removing the deteriorated sludge from the absorbent oil comprises the steps of storing the absorbent oil in an absorbent oil storage tank(2); and maintaining a temperature of the absorbent oil to a temperature of 20 to 25 deg.C by supplying the absorbent oil stored in the storage tank(2) into a refrigerator(3), wherein a heat transfer rate between the absorbent oil and the refrigerator(3) is maintained to 20 to 25 BTU/h(British thermal units per hour).
Patent KR-20020046571-A (KR)
Inventor: CHO I HYEON
IPC: C23C2/06
Filed: 2000-12-15
Abstract: PURPOSE: An apparatus for inspecting powdering of a galvanized alloy strip is provided to improve manufacturing productivity of the galvanized alloy strip based on the evaluated grade by promptly and accurately performing the powdering inspection on the galvanized alloy strip, thereby evaluating a grade of the galvanized alloy strip. CONSTITUTION: In an apparatus for inspecting galvanized alloy sample tapes for powdering inspection of a galvanized alloy strip, the apparatus for inspecting powdering of the galvanized alloy strip comprises sample clamping means(30) which are mounted in front and rear sides of a moving base(20) in such a manner that the sample clamping means(30) is moved up and down so as to clamp samples(S), wherein the moving base(20) is installed in a length direction of a base(10) so that the moving base(20) is moved in a straight line; a tape supply means(40) which is installed so that it is driven in a width direction of the moving base(20), and onto which inspecting tapes (T) adhered onto the samples(S) are adhered; processing and smoothening means(50,60) for processing and smoothening the samples(S) that are moved in that state that the tapes(T) are adhered in a length direction of the base(10), and the samples(S) are fixed by the clamping means(30); and an evaluation means(70) for automatically evaluating a grade of a galvanized alloy product by inspecting the tapes(T) separated from the samples(S) that are processed and smoothened at the end part of the base(10).
Patent KR-20020049119-A (KR)
Title: Variable steering system for use in an automobile
Inventor: SONG JUN GYU
IPC: B62D9/00
Filed: 2000-12-19
Abstract: PURPOSE: A variable steering device of a vehicle is provided to use the space in a wheel house, and to reduce radius of rotation of the vehicle by adjusting the steering range of wheels according to installation of a chain. CONSTITUTION: A variable steering system of a vehicle is composed of a link bar(30) installed in parallel with a rack(20), and moved integrally with the rack; position fixing protrusions(31) formed in the end of the link bar; a stopper(32) placed between two position fixing protrusions to control displacement of the link bar; and a driving unit(40) moving back and forth the stopper linearly. Operational force from a driver is converted into rotation of a steering shaft, and transmitted to wheels through a tie rod by converting into linear motion by the rack. The link bar is integrally interlocked with the rack, and the rack is adjusted with placing the stopper between position fixing protrusions selectively. The radius of rotation is reduced with obtaining the steering angle of front wheels in the wheel house in not mounting the chain.
Patent KR-20020049245-A (KR)
Inventor: HONG CHANG BONG
IPC: G01L3/00
Filed: 2000-12-19
Abstract: PURPOSE: A femur flexion torque testing apparatus is provided, in which a jig, swirling unit and a sensor unit are arranged, to thereby calculate a flexion torque and angle for the pelvis installed to the jig. CONSTITUTION: A femur flexion torque testing apparatus comprises a jig(1) where a pelvis(3) to be tested is mounted to be turnable; a swirling unit for swirling the pelvis mounted to the jig, in a vertical direction; and a sensor unit for sensing the flexion torque acting to the pelvis and operating angle of the pelvis, while the pelvis is swirling in a vertical direction by the swirling unit. The jig includes a femur flange(5), upper and lower pelvis fixing brackets(7,9) and a body(11) where the upper and lower pelvis fixing brackets are fixed. The swirling unit includes a rod(15) connected to the pelvis, a hydraulic cylinder(17) connected in a rotatable manner to the rod and the jig, respectively, and a solenoid valve(19) for controlling the hydraulic pressure from an oil pump and the hydraulic pressure from the hydraulic cylinder. The sensor unit includes a first angle sensor(23) arranged to the connecting portion between the rod and the hydraulic cylinder, a second angle sensor(25) arranged to the connecting portion between the hydraulic cylinder and the jig, and a load cell(27) arranged on the hydraulic cylinder.
Patent KR-20010062676-A (KR)
Inventor: CROCITTI VALERIE
IPC: G06F3/0484
Filed: 2000-12-26
Abstract: PURPOSE: A method and device is provided to improve the expression arrangement and size of an application, while reducing additional programming and a memory capacitance as much as possible. CONSTITUTION: A method comprises a step of detecting the activation of the navigator, a step of resizing the display of the video signal and the representation of applications according to one and the same homothetic reduction. A device comprises a navigator(10); a control module(40) including at least elements for detecting the activation of the navigator; a repositioner reformatter(50); and a mixer(60) for mixing the representations of the applications and of the video signal with that of the navigator. The element in the control module detects a modification of the state of activation of the navigator and orders the repositioner reformatter to resize and reposition the representation of the applications and of the display of the video signal.
Patent KR-20020031269-A (KR)
Inventor: JUNG WOO HYUB
IPC: A45D44/22
Filed: 2000-12-28
Abstract: PURPOSE: Provided is an electric control equipment in skin beauty instruments which judges users' physical condition or constitution by switch control to set use input and use time directly so that it helps to maximize skin beauty effect. CONSTITUTION: The electric control equipment in the skin beauty instruments comprises the parts of: a power supply(2) which controls micom, CPU, semiconductors or so on anywhere; a control part(3) which includes a switch, the micom, CPU, semiconductors or so on; a pressure sensor part(100) which controls exact pressure in the control part as patients' constitution; a relay part(6) which adjusts injection intensity and volume and turns on the switch; an air pump part(7) which plays intake function as the entered input and time; an LED part(4) which turns on a lamp for displaying pressure and power as conditions of pressure and pump operation; and a buzzer(5) which generates sound to inform users' input when buttons for time, pressure and pump operation are operated.
Patent KR-20020055970-A (KR)
Title: Structure for folding rear seat back of automobile
Inventor: KWON HO SEONG
IPC: B60N2/20
Filed: 2000-12-29
Abstract: PURPOSE: A structure for folding a rear seat back for a car is provided to simplify the whole operation mechanism, to improve operating power in relation with a folding action, to reduce weight by reducing the number of components, to easily perform a folding action, and to increase commonality. CONSTITUTION: A structure for folding a rear seat back for a car includes at least two or more of hinge bars(14) and a hinge bar assembly(17). The hinge bars pass through a lower end of each rear seat back divided into two. The hinge bar assembly is located on a back partition panel surrounding ends of each hinge bar in a slidably rotating manner. The hinge bar assembly arranged on the divided part of the rear seat back contains the hinge bars facing each other at the same time.
Patent KR-20010021904-A (KR)
Title: 화학증착에 의한 박막의 제조방법 및 그 제조장치
IPC: C23C16/455
Filed: 1998-07-14
Abstract: 벤튜리안개발생기(141,142,143,16)는 금속유기화합물을 함유하는 액체전구물질로부터 1미크론미만의 평균직경을 가진 방울로 이루어진 안개를 생성한다.   이 안개는 혼합된 후, 통과해서 가스화장치(160)로 들어가며, 여기서 안개방울은 100℃와 250℃사이의 온도에서 가스화되며, 상기 온도는 전구물질화합물이 분해하는 온도보다 낮다.   가스화된 전구물질화합물은 응축 및 조기분해를 방지하기 위하여 주위온도에서 절연된 튜브(161,168)를 통해서 캐리어가스에 의해 운반된다.   가스화된 전구물질은 산화가스와 혼합되며, 가스모양의 반응혼합물은 샤워헤드입구(184)를 통하여 퇴적반응기로 주입되며, 이 퇴적반응기내에서 기판(185)은 300℃내지 600℃의 온도로 가열된다.   가스화된 전구물질은 기판(185)에서 분해해서, 기판상에 고체재료의 박막(860)을 형성한다.   박막(860)은 500℃내지 900℃의 높은 온도에서 처리되어, 다결정금속산화재료, 특히 강유전성층형상초격자재료를 형성한다.
Patent KR-20010015587-A (KR)
Title: 열간 압연 고강도 강 구조 부재
Filed: 1997-09-18
Abstract: 특정 화학적 조성 및 바람직하게는 약 120,000 psi 이상의 인장 강도 및 약 90,000 psi 이상의 항복 강도를 갖는 고강도 강 재료를 제공하고, 강 재료를 열간 압연시켜 목적하는 기하학적 형상의 구조 부재를 수득함에 의한 고강도 강 구조 부재 및 이의 제조 방법이 기술되어 있다.
Patent KR-20010041846-A (KR)
Title: 유도적으로 결합된 분산형 플라즈마 소스
IPC: H01L21/302
Filed: 1999-03-01
Abstract: 본 발명은 반도체 처리 챔버에서 플라즈마에 파워를 유도적으로 결합하기 위한 장치 및 방법에 관한 것이다.  제 1특징에서, 유도 코일 어레이는 원형 횡단면을 가진 기하학적 표면상에 분산된다.  각각의 코일은 어레이의 두 개의 인접한 코일의 인접 면이 기하학적 표면의 원형 횡단면의 반경에 거의 평행하게 되도록 쐐기 모양을 가진 횡단면을 가진다.  평행한 인접 코일의 면은 코일 어레이에 의하여 생성된 자기장의 방사방향 균일성을 향상시킨다.  제 2특징에서, 유도 코일과 플라즈마사이의 정전기 결합은 파워 공급장치에 각각의 유도 코일을 접속함으로써 최소화되며, 따라서 플라즈마에 가장 가까운 코일의 와이어 턴은 접지 전위에 인접하도록 한다.  일 실시예에서, 각 코일의 인접 단부는 접지에 직접 연결된다.  제 2 및 제 3실시예에서, 두 개의 코일은 각 코일의 근접 단부에서 직렬로 연결된다.  제 2실시예에서, 각각의 코일의 반대("RF핫") 단부는 RF 파워 공급장치의 각각의 안정 출력에 연결된다.  제 3실시예에서, 일 코일의 핫 단부는 RF 파워 공급장치의 비안정 출력에 연결되고, 다른 코일의 핫 단부는 RF 파워 공급장치의 주파수에서 코일과 공진하는 캐패시터를 통하여 접지에 연결된다.
Patent KR-20010034685-A (KR)
Title: 프로테아제 콘쥬게이트
IPC: C12N9/54
Filed: 1999-03-25
Abstract: 본 발명은 제 1 에피토프 영역, 제 2 에피토프 영역 및 제 3 에피토프 영역을 함유하는 모 아미노산 서열의 변형된 아미노산 서열을 갖는 프로테아제 부분, 및 하나 이상의 부가 부분을 함유하는 서브틸리신 프로테아제 콘쥬게이트에 관한 것으로, 변형된 아미노산 서열은 하나 이상의 에피토프 영역 내의 하나 이상의 위치에서의 치환 아미노산에 의한 치환을 함유하고 각 부가 부분은 치환 부분 중 하나에 공유결합적으로 부착된다.   또한 본 발명은 이같은 프로테아제 콘쥬게이트를 함유하는 세정 및 개인 케어 조성물에 관한 것이다.
Patent KR-20010071368-A (KR)
Title: Ｃｄｍａ 시스템의 다이나믹 밴드폭 할당
IPC: H04B1/707
Filed: 1999-05-26
Abstract: 본 발명은 CDMA 채널에 대한 액세스의 보다 효율적인 할당에 의해 코드분할 다중 액세스(CDMA) 타입의 시스템에 이용될 수 있는 단일 통합 프로토콜 및 현존 셀룰러 시그널링에 의해 표준 무선 접속시에 고속 데이터 서비스를 제공하는 기술에 관한 것이다.  예를 들어, 채널보다 많은 사용자가 존재할 때, 본 발명은 사용자가 특정 시간에 채널 액세스를 필요로 할 것이며 따라서 채널 리소스를 다이나믹하게 할당하는 일련의 가능성을 결정한다.  채널 리소스는 기지국과 다중 가입자 유니트의 사이에서 순방향 및 역방향 링크에서 제공되는 버퍼 모니터링 계획안에 따라 할당된다.  각각의 버퍼는 상기 버퍼에 전송되는 데이터의 임계 레벨에 대해서 시간에 대해 모니터링된다.  각 버퍼에 대해, 얼마나 자주 특정 버퍼가 데이터를 전송할 필요가 있으며 얼마나 많은 데이터가 전송될 것인지를 나타내는 가능성이 계산된다.  상기 가능성은 버퍼에 대한 데이터 도착율외에 버퍼내의 임계값이 초과되는지 또한 채널의 형태인 리소스가 가입자 유니트에 이미 할당되었는지가 고려된다.
Patent KR-20010053104-A (KR)
Title: 플라즈마 처리 챔버에서 구속링을 위치설정하기 위한캠작동식 장치
IPC: H01J37/32
Filed: 1999-06-22
Abstract: 본 발명은 플라즈마 처리 챔버의 제 1 축을 따라 구속링을 이동시키도록 구성된 캠작동식 장치에 관한 것이다.  구속링은 제 1 축에 수직인 평면에 구성된다.  캠작동식 장치는 캠링을 포함하고, 상기 캠링은 캠링의 제 1 면에 형성된 다수의 캠영역을 가진다.  또한, 캠작동식 장치는 다수의 캠팔로워를 포함하고, 상기 캠팔로워는 캠링의 제 1 면과 구름 접촉된다.  또한, 캠작동식 장치는 다수의 플런저를 포함하고, 상기 플런저는 제 1 축에 평행하게 방향구성되며, 다수의 플런저의 각각은 다수의 캠팔로워의 하나 및 구속링에 결합되고, 캠링이 회전되고 다수의 캠팔로워가 캠링의 제 1 면과 구름 접촉을 유지할 때, 다수의 플런저는 제 1 축과 평행하게 이동된다.
Patent KR-20010053132-A (KR)
Title: 호르몬과 결정화 저해제를 갖는 경피 치료 시스템
IPC: A61K9/70
Filed: 1999-06-08
Abstract: 본 발명은 지지층, 폴리아크릴레이트 감압 접착제와 결정화 저해제로 제조되고 상기 지지층에 부착된 활성 성분으로 과포화된 저장층, 및 박리성 보호층을 갖는, 노르에티스테론 아세테이트와 조합된 에스트라디올의 제어 방출을 위한 플라스터형 경피 치료 시스템으로써, 결정화 저해제가 아미노기 함유 폴리머임을 특징으로 하는 경피 치료 시스템에 관한 것이다.
Patent KR-20020057349-A (KR)
Title: Ball Grid Array package mounting heat sink
Inventor: KIM DONG SUK
IPC: H01L23/498
Filed: 2001-01-04
Abstract: PURPOSE: A ball grid array package to which a heat sink is attached is provided to effectively radiate heat generated from a semiconductor chip inside a resin encapsulation part to the exterior, by using various paths for radiating the heat. CONSTITUTION: A plurality of electrode pads are formed on an active surface of a semiconductor substrate. A printed circuit board(PCB)(20) has an upper surface to which the semiconductor chip(10) is attached and a lower surface opposite to the upper surface. An electrical connecting unit electrically connects the semiconductor chip with the PCB. A resin encapsulating part(60) encapsulates the semiconductor chip on the PCB and the electrical connecting unit. The heat sink(70) is attached to the upper surface of the resin encapsulating part. A solder ball is formed on the lower surface of the PCB, electrically connected to the semiconductor chip. An interconnection pattern layer(23) has an upper interconnection layer(30), a ground layer(32) and a lower interconnection layer(33). A signal via(40) connects the solder ball pads corresponding to the substrate pad, penetrating the body(21) of the substrate and separated from the ground layer. The first heat radiating via penetrates the body of the substrate under a chip mounting region(34), connected to the ground layer. The second heat radiating via penetrates the body of the substrate under the first heat radiating layer, connected to the ground layer. The lower surface of the heat sink is attached to the upper surface of an upper radiation layer and the upper surface of the resin encapsulating part.
Patent KR-20010078023-A (KR)
Title: Electrostatic painting machine selectively used in two ways and a method for the same
Inventor: MOTOZAKI MASAHIKO
IPC: B05B5/04
Filed: 2001-01-19
Abstract: PURPOSE: To provide an electrostatic coating machine used as a rotary atomization type coating machine and an air atomization type coating machine by only exchanging a part of components and its method. CONSTITUTION: The electrostatic coating machine 1 has a common coating machine main body 3, an atomizing head 5 and a rotary atomizing head 7 capable of being mounted on the coating machine main body 3, and when the atomizing head 5 is mounted on the coating machine main body 3, the machine is used as the air atomization type coating machine, and when the rotary atomizing head 7 is mounted on the coating machine main body 3, the machine is used as the rotary atomization type coating machine.
Patent KR-20020063058-A (KR)
Title: apparatus and method for design of the floating point ALU performing addition and round operations in parallel
Inventor: HAN TACK DON
IPC: G06F7/485
Filed: 2001-01-26
Abstract: PURPOSE: A floating point ALU(Arithmetic Logic Unit) is provided to simultaneously perform an IEEE rounding and addition operation on a floating point addition operator by using an SRM(Simultaneous Rounding Method). CONSTITUTION: The unit comprises the first and the second bit-exclusive-logical addition operator(270, 270'), a leading zero controller(300), a multiplexor(310), an alignment right rotator(250), a bit-half adder(160), a CSA(Carry Select Adder), a multiplexor(200) and a compensator(290). The first and the second bit-exclusive-logical addition operator(270, 270') bypass or invert output values of two bit streams of an exponent alignment unit according to the first and the second control signal externally input. The leading zero controller(300) calculates leading zeros by using the signal output from the first bit-exclusive-logical addition operator(270). The multiplexor(310) selects and outputs one between the output value of the leading zero controller(300) and the shift amount for an exponent alignment, according to the third control signal externally input. The alignment right rotator(250) performs an exponent alignment and a normalization on the value output from the multiplexor(300) via a right or a left rotation, and generates a guard bit, a round bit or a sticky bit. The bit-half adder(160) receives the two bit streams output by the alignment right rotator(250) and the second bit-exclusive-logical addition operator(270'), and adds a carry with an addition. The CSA outputs the addition value of the bit-half adder(160) and increases the addition value by one. The multiplexor(200) selects one between the two values output by the CSA according to the fourth control signal. The compensator(290) compensates an LSB(Least Significant Bit) of a value output by the third bit-exclusive-logical addition operator(280').
Patent KR-20010086352-A (KR)
Title: Method of rewriting program in flash microcomputer
Inventor: TAKAHASHI SHUJI
IPC: G06F9/445
Filed: 2001-01-27
Abstract: PURPOSE: To dispense with rewriting of a boot program from a memory block to another when the boot program stored in a memory device is rewritten. CONSTITUTION: In the memory device which provides a first memory block 26 and a second memory block 28, the following four processes are executed, in order to rewrite the boot program: In the first process (B), the data stored in the second memory block 28 is deleted to write a new boot program in it. In the second process (C), the new boot program is written in the second block 28. In the third process, the address of the second block 28 is altered to indicate that the second memory block is the boot block. In the process (D), old boot program stored in the first memory block 26 is deleted.
Patent KR-20010035341-A (KR)
Title: apparatus for adjusting interval of tape guide rail for use at semiconductor package taping machine
Inventor: BAEK GWAN SU
IPC: H01L21/02
Filed: 2001-02-05
Abstract: PURPOSE: An apparatus for handling a rail interval of a semiconductor package taping machine is provided to control accurately an interval of a guide rail according to a width of a carrier tape by using a gauze block. CONSTITUTION: An apparatus for handling a rail interval of a semiconductor package taping machine comprises a guide rail, a movement portion(11,25), a gauge block(50), and a stopper. The guide rail is formed with a fixed rail(21) and a movable rail(22). The movement portion(11,25) moves or fixes the movable rail(22) according to kinds of carrier tape. The gauze block(50) has a plurality of reference face to determine a setting location of the movable rail(22). The stopper elevates or fixes the gauze block(50) to a predetermined location according to kinds of the carrier tape.
Patent KR-20020065694-A (KR)
Title: Scooter Having Adjustable Steering or Turning Mechanism
Inventor: CHENG BEN
IPC: B62K21/00
Filed: 2001-02-07
Abstract: PURPOSE: A scooter having a steering system or a turning unit is provided to adjust the direction or the turning angle of the scooter by installing the steering system or the turning apparatus in the scooter. CONSTITUTION: A scooter is composed of a footboard(10) supporting a passenger, a housing(40) installed in the end of the footboard, a wheel axle(60) installed in the housing to rotate, a wheel mounted in the wheel axle, and an assembling unit combing the housing with the footboard for adjusting the wheel axle, and steering of the footboard. The axle and a fixing shaft are installed in the housing, and the housing is adjusted according to the footboard. The axle is paralleled with the plane of the footboard, and the fixing shaft is vertically formed against the axle. Direction or the turning angle is adjusted with mounting the steering system or the turning unit in the scooter.
Patent KR-20020066013-A (KR)
Title: apparatus and method for keyword based program searching
Inventor: JOA DEOK JIN
IPC: G06F17/30
Filed: 2001-02-08
Abstract: PURPOSE: A program search system and method is provided to store and update program data on a digital broadcasting, an internet broadcasting or a VOD service at a local storage, and to enable a user to search for a desired program by a keyword. CONSTITUTION: The method comprises steps of receiving program data related to a digital TV broadcasting, an internet broadcasting and a VOD service with a DTV receiver and a network access module(S10), decoding the program data by using a protocol link, for example, an SI(Service Information) or an OC(Object Carrousel), and extracting keywords from the decoded program data(S20), storing the decoded program data and the extracted keywords at a database(S30), if a user inputs a keyword related to a desired program by an external input device, comparing the input keyword with stored keywords, retrieving a plurality of program data related to the input keyword, and displaying the search result on a display(S40), enabling a user to select one specific program data among the displayed search result, synthesizing the selected program data with AV(Audio Video) signals tuned via the DTV receiver and the network access module, and displaying the synthesized moving picture on a display(S50, S60).
Patent KR-20020067333-A (KR)
Inventor: CHO HO YEOL
IPC: H01L27/04
Filed: 2001-02-16
Abstract: PURPOSE: A semiconductor device is provided to prevent a skew between output signals of an input buffer, by generating an input signal at the same point of time when a plurality of input buffers are connected to an input pin or one input buffer is connected to the input pin. CONSTITUTION: The semiconductor device has a plurality of input buffers(20) connected to at least one of a plurality of input pins. A pad(14) is connected to the input pin. A plurality of electrostatic protecting resistors are connected between the pad and the plurality of input buffers.